Publication

Untapped seasonal storage potential in Swiss hydropower schemes

2016
Posters

Abstract

We have analysed all Swiss hydropower reservoirs with a capacity above 1 million m3: ‐ 63 reservoirs > 1 hm3 ‐ 40 reservoirs > 10 hm3 ‐ 29 reservoirs > 30 hm3 ‐ 36 reservoirs > 60 hm3 These 168 dams represent 8778 GWhof storage capacity, which is over 99% of the total Swiss hydropower storage capacity. The results show that a significant number of dams could increase storage in a significant way: ‐ 48 dams could capture existing excess natural inflows if their current storage capacity were to be increased. ‐ 7 dams are sub-optimally used, and could catch additional inflows using existing infrastructure.

Official source

https://infoscience.epfl.ch/entities/publication/8a7cedda-7bf7-4afe-a757-ba86665c5460

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2016
Posters

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/8a7cedda-7bf7-4afe-a757-ba86665c5460

About this result

Related concepts (17)

Pumped-storage hydroelectricity

Pumped-storage hydroelectricity (PSH), or pumped hydroelectric energy storage (PHES), is a type of hydroelectric energy storage used by electric power systems for load balancing. The method stores energy in the form of gravitational potential energy of water, pumped from a lower elevation reservoir to a higher elevation. Low-cost surplus off-peak electric power is typically used to run the pumps. During periods of high electrical demand, the stored water is released through turbines to produce electric power.

Hydropower

Hydropower (from Ancient Greek ὑδρο-, "water"), also known as water power, is the use of falling or fast-running water to produce electricity or to power machines. This is achieved by converting the gravitational potential or kinetic energy of a water source to produce power. Hydropower is a method of sustainable energy production. Hydropower is now used principally for hydroelectric power generation, and is also applied as one half of an energy storage system known as pumped-storage hydroelectricity.

Hydroelectricity

Hydroelectricity, or hydroelectric power, is electricity generated from hydropower (water power). Hydropower supplies one sixth of the world's electricity, almost 4500 TWh in 2020, which is more than all other renewable sources combined and also more than nuclear power. Hydropower can provide large amounts of low-carbon electricity on demand, making it a key element for creating secure and clean electricity supply systems.

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Untapped seasonal storage potential in Swiss hydropower schemes

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